Specifications:
Bearings
Type: Bottom Mounted
Inner Diameter: 1/4”
Outer Diameter: 1/2”
Thickness: 3/16"
Stop RingInner Diameter: 1/4”
Outer Diameter: 7/16”
Thickness: 1/3"
Package Contents:5 Pcs x R188ZZ Bearings
5 Pcs x Stop Ring
5 Pcs x Set Screw
1 Pcs x Wrench

Description:Bearing guide is used on router bits to route a smooth line or limit the cutting depth. Chamfer bits, flush trim bits all use bearing guides to route to a precise pattern.
After frequent use, the bearings of the router bit may become loose or difficult to rotate. If the bearing cannot rotate freely, it will affect the working effect. These bearings can be used to replace worn out bearings.
Notice: Choose the correct inside diameter (I.D.) and outside diameter (O.D.) for your needs.
How to change bearing on router bit?Step 1 - Select an appropriate hex key to loosen the original screw.
Step 2 - Remove the old guide bearing and place a new one.
Step 3 - Insert the stop ring and tighten it.
Step 4 - Ensure the bearing spins freely before they get to work.